Type 8840 - Modular Process Valve Cluster – Distributor and Collector from Bürkert

Type 8840 - Modular Process Valve Cluster – Distributor and Collector from BürkertType 8840 comes with ready to install modules of tried and tested Bürkert process valves. The valve cluster, based on a modular valve body, allows different configurations. The individual parts are joined hermetically tight and in a very compact way. No installation effort for pipework, fittings or sealings is needed. For the sizes DN20 (¾") and DN25 (1") orbital welding is used. The smaller variants in DN10 are threaded together using trusted graphite seals. To avoid dangerous water hammer, all valves have the flow direction below the seat. This is made possible by the two variants for the fluidic main function distribution and collecting, mixing or feed. Depending on the requirement and preferred type of automation, it is possible to choose from different actuator variants. The robust CLASSIC actuators (in stainless steel or plastic) are controlled by a central valve island or by a pilot valve. The proven ELEMENT actuators allow a simple decentralized automation by using intelligent control heads Furthermore it is possible to expand the system by using continuous control valves, sensors, customer specific pipework or further accessories.

Features

Type 8840 - Modular Process Valve Cluster – Distributor and Collector Features:

  • Valve cluster ready for installation
  • Compact design without any potential leakage
  • No assembly effort
  • No piping between the valves neede
  • Trusted actuators for simple automation

Specifications

Type 8840 - Modular Process Valve Cluster – Distributor and Collector Specifications:

Product Properties
Material
HousingPrecision cast stainless steel 316L (CF3M)
Actuator
INOX DN 10Stainless steel (on request)
CLASSIC DN 20, DN 25 PA (PPS on request) 
ELEMENT DN 20, DN 25
 
Actuator: PPS, cover: stainess steel 1.4561 (316Ti)
SealPTFE
Packing glandPTFE seal with spring compensation
Nominal diameter (port connection)DN 10 (threaded) 
DN 20, DN 25 (welded)
Control functionCF A (closed by spring force) 
CF B (opened by spring force) on request
Number of valve positions
DN 10 (threaded)2…9 (clusters with larger number of valves on request )
DN 20, DN 25 (welded)2…5 (clusters with larger number of valves on request )
Performance data
Nominal pressurePN 25 (housing)
Pilot pressureMax. 10 bar
Medium data
MediumSteam, water, neutral gases, alcohols, oils, fuels, hydraulic fluids, salt solutions, alkalis and organic solvents
Medium temperature- 10…+ 180 °C
ViscosityMax. 600 mm²/s
Control mediumNeutral gases, air
Process/Port connection & communication
Port connection
Threaded connectionG ⅜…G 1, NPT ⅜…NPT 1
Welded connectionISO 4200 (on request)
Clamp connectionDIN 32676 series B (on request)
Pilot air ports
INOX DN 10Female elbow fitting (hose Ø 4)
CLASSIC DN 20, DN 25G ¼
ELEMENT DN 20, DN 25Push-in connector 6/4
Environment and installation
Ambient temperature
INOX DN 100…+ 60 °C
CLASSIC DN 20, DN 25- 10…+ 60 °C (PA actuator) 
+ 5…+ 140 °C (PPS actuator)
ELEMENT DN 20, DN 250…+ 60 °C

Applications

Type 8840 - Modular Process Valve Cluster – Distributor and Collector Applications:

  • Automotive industry – cooling of welding robots and tooling
  • Plastic injection molding – temperature control of mold cooling circuits
  • Food & beverage – cooling during pasteurization or brewing processes
  • Packaging machinery – thermal management for sealing equipment
  • Industrial automation – centralized cooling control for multiple zones

Q & A

Q&A Section with Expand/Collapse Icons

Type 8840 - Modular Process Valve Cluster – Distributor and Collector Q & A:

+ What is the Bürkert Type 8840 valve cluster?
The Type 8840 is a ready-to-install, modular valve cluster based on tried-and-tested Bürkert process valves. It enables compact configurations without piping, fittings, or sealings, making setup quick and reliable
+ What are the main fluidic functions?
It supports distribution, collection, mixing, and feeding of fluids, depending on the variant chosen
+ How is water hammer prevented?
All valves are designed with inflow below the seat to avoid dangerous pressure surges, ensuring safer operation
+ Can the cluster be enhanced with additional components?
Yes. You can integrate continuous control valves, sensors, custom pipework, or other accessories for full design flexibility
+What certifications and approvals does it hold?
Comes with EU Declaration of Conformity, ATEX approval for explosion protection, FDA compliance, and material declarations ensuring regulatory compliance
 

Downloads

Download Bürkert Type 8840 - Modular Process Valve Cluster Datasheet

 

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